This is an aerial view of tornado damage to an apartment complex in Tuscaloosa, Ala., Thursday, April 28, 2011. Firefighters searched one splintered pile after another for survivors Thursday, combing the remains of houses and neighborhoods pulverized by the nation's deadliest tornado outbreak in almost four decades. At least 280 people were killed across six states _ more than two-thirds of them in Alabama, where large cities bore the half-mile-wide scars the twisters left behind. (AP Photo/Dave Martin)